Yarn twist distributing machine



Feb. 19, 1952 M. H. BRISCOE 2,586,294

YARN TWIST DISTRIBUTING MACHINE Filed Jun 15, 1950 2 SHEETSSHEET 1 I I ZZJZBFZ'GZWQ,

INVENTCR' BY 1 I ATTORNEYS Feb. 19, 1952 M. H. BRISCOE YARN TWIST DISTRIBUTING MACHINE Filed June 13, 1950 2 SHEETS SHEET 2 MEBWZL'PCOQ INVENTOR ATTORNEYS Patented Feb. 19, 1952 YARN TWIST DISTRIBUTING MACHINE Madison H. Briscoe, Athens, Ga., assignor of onethird to .E. B. Hudson, one-third to N. H. Thompson, Jr., and one-third to Madison H. Briscoe, partners, doing business as The Circular Banding 00., Athens, Ga.

Application June 13, 1950, Serial .No. 167,706

3 Claims.

This invention relates to a method and apparatus for the treatment of twisted yarn or like cordage, which consists in supplying twist torque to yarn in the formation of an endless band, in such a manner that the end portions thereof are securely connected, providing an exceptionally strong and durable band or belt designed primarily for use with light machines such as dental engines or the like.

An important object of the invention is to provide a method and means for uniting what is commonly known as the hard end of the length of yarn or cordage, with the soft or untwisted end thereof, to provide a band or belt for light machinery, wherein the point of connection between the ends of the material will be invisible.

Still another object of the invention is to provide a twisting apparatus which operates on roller bearings for easy running of the machine, means being provided for supporting and housing the roller bearings to prevent the lubricant used on the bearings, from soiling the yarn or cordage under treatment.

With the foregoing and other objectsin view which will appear as the description proceeds. the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the claims, it being understoodthat changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawings:

Figure 1 is a plan view of a machine constructed in accordance with the invention.

Fig. 2 is an enlarged plan view of the machine.

Fig. .3 is a sectional view taken on line 3-3 of Fig. 1.

Fig, 4 is a sectional view taken on line 4-4 of Fig. 2.

Fig. 5 is a View illustrating loops and free ends of the soft end and hard end of a length of yarn or cordage prior to positioning in the machine.

Fig. 6 is a view illustrating how the ends of the length of yarn or cordage are temporarily interwoven.

Fig. 7 is a view illustrating the manner of connecting the soft end of the yarn with the hard end prior to the twisting operation.

Referring to the drawings in detail, the ma chine embodies a supporting frame which includes a table 5 On which the machine proper is mounted, the machine comprising end plates which are secured to the base plate 1 by means of the bolts 8 that are threaded in openings formed in the side edges of the base plate 1, bolts 9 being provided for securing the base plate I to the table 5.

The end plates 6 are formed with circular openings, the circular openings of the plates registering, providing a support for the armature or rotating sleeve of the machine, the edges of the plate at the openings providing a guide for the armature or rotating sleeve.

The substantially V-shaped slots in are formed in the end plates and extend downwardly from the upper edges thereof terminating at the circular openings of the end plates.

The armature or rotating sleeve is indicated by the reference character I] and is of a length to extend through the circular openings of the end plates with portions thereof extending beyond the outer surfaces of the end plates 6. Attached intermediate the ends of the armature or rotating sleeve ll is the pulley l2, which is formed with a plurality of belt grooves in which the endless belts l3 operate, the belts l3 moving over the pulley l4 secured to the shaft of the motor l5, the pulley l4 having a plurality of grooves to accommodate the belts 13, the grooves in the pulley l4 being in alignment with the grooves of the pulley l2.

Connecting rods I 6 connect the end plates 6, which rods provide bearings for the idle pulleys II, the idle pulleys I! being disposed with such relation to the pulley 12 that the belts I3 operate thereover to contact the pulley 12 at the lower side thereof.

At the ends of the armature or rotating sleeve H are circular shoulders l8 which contact the inner ends of scaled roller bearings l9, the shoulders I8 operating to hold the armature or sleeve in its proper position within the openings of the end plates, to prevent thrust of the armature or rotating sleeve with respect to the end plates.

The sealed roller bearings l9 are mounted on the shafts 20 secured to the end plates (5 and provide bearings for the armature or rotating sleeve,

so that the sealed roller bearings [9 will rotate with the armature or rotating sleeve and "because of the contact between the roller bearings I9 and rotating sleeve, an exceptionally free running armature or rotating sleeve is provided. The pulley l2 and flanges is are also formed with slots extending to the center of the armature or rotating sleeve providing a continuous slot throughout the length of the armature or rotating sleeve, to permit the yarn or length of cordage to be twisted, to be inserted in the armature or rotating sleeve and held therein.

Secured to one end of the armature or rotating sleeve II, is the hook 20', which hook is spaced a substantial distance from the end of the sleeve supporting the hook, providing ample room for the twisting of the length of yarn or cordage under treatment.

One end of the armature or sleeve H is extended beyond the plate 6 and is knurled at M providing a finger piece whereby the sleeve may be adjusted to align the slot thereof with the slots of the end plates 6 for positioning the yarn or cordage.

As shown by Fig. 5 of the drawings, the length of cordage which has been formed by the well known twisting operation, is shown with the end 21, commonly known as the hard end, of the length of yarn or cordage, arranged in a position so that the loops 28 and 29 thereof, which are the longer loops of the soft end of the length of yarn or cordage may be drawn through the loop 30 of the hard end. The reference character 3! indicates a clip which is clipped to the length of yarn or cordage at a point where the twisting of the soft end of the yarn or cordage ends. This is done so that further untwisting of the yarn or cordage will be prevented during the treatment of the yarn or cordage in preparation to placing the -i yarn or cordage into themachine for the twisting operation to unite the soft end of the cordage with the hard end.

In preparing the length of yarn or cordage, a

hook such as indicated at A, is provided and passed through the loop 30, where the hook is passed through the loops 23 and 29 of the soft end of the yarn or cordage The free end 32 of the soft end of the yarn or cordage is new extended through the loops 28 I?- and 29, which have been drawn through the loop 30 of the hard end of the yarn or cordage. The free end 32 is now passed through the loop 33 of the soft end and then again passed through the loop 28, all of which is clearly shown by Fig. '7 of the drawing. The free end 32 is now brought to a position against the portion of the yarn or length of cordage at the base of the loop 33 to be twisted into contact with the main portion of the yarn or length of cordage.

Secured to the table 5, is the guide 34 within which the block 35 moves, the block 35 carrying the pulley 36 which is urged in one direction by means of the weight 31 which is connected with the block 35 by means of the flexible member 38.

Idle pulleys 39, Ml, M and 42 are mounted on the table 5 over which the yarn or length of cordage moves and is held, the yarn or length of cordage being indicated by the reference character 43.

In the operation of the machine to twist the hard and soft ends of the length of yarn or cordage together, the yarn or cordage is positioned after the hard and soft ends of the yarn or cordage have been woven together, as illustrated by Fig. 7 of the drawings. the yarn or cordage are moved through the V- shaped slots of the end plates and armature or rotating sleeve and the loop 30 of the hard end of the yarn or length of cordage is positioned so that it engages the outer surface of the hook 20, with the hook 20 extending through the loop 3 formed when connecting the hard and soft ends of the yarn or length of cordage. The motor is now set in motion which transmits movement to the armature or rotating sleeve, through the The connected ends of the yarn or length of cordage, operates to tighten the twists together, while the opposite end or soft end of the yarn or cordage will be untwisted until the rotation or twisting motion of the yarn or cordage at the hard end.of the yarn or cordage has reached a torque to cause the remaining portion or strands of the yarn or length of cordage to twist together in the opposite direction. During this twisting operation the loose connection between the soft end of the yarn and hard end of the yarn will be tightly twisted together, providing an endless band wherein the ends of the length of yarn or cordage used in the formation of the band, are invisible.

It will be noted that as the length of the band is shortened due to the twisting operation, the shortening of the band will be compensated for by the action of the weight which insures a tight twisting of the yarn or cordage.

Having thus described the invention, what is claimed is:

1. The method of twisting together the loop of the hard end and soft end of a length of cordage in the formation of an endless belt, consisting in interlocking the loops of the hard and soft ends of the cordage together temporarily uniting the ends of the cordage, subjecting the temporarily united ends of the cordage to a twisting action in the direction of the natural twist at the hard end of the cordage, untwisting the strands of the soft end of the cordage, continuing the twisting operation of the connected ends of the cordage in the direction of the natural twist of the cordage until the ends of the cordage are securely twisted together.

2. The method of twisting together loops of the hard end and soft end of a length of cordage in the formation of an endless belt, consisting in interlocking the loops of the hard and soft ends of the cordage temporarily connecting the ends of the cordage, subjecting the connected ends of the cordage to a twist torque in the direction of the natural twist of the cordage, tightening the twist at one end of the cordage and loosening the twist at the opposite end thereof, continuing the application of torque produced in the direction of the natural twistof the cordage, resulting in the untwisting of the cordage at one end and retwisting of the untwisted end of the cordage in the direction of natural twist of the cordage, twisting the ends of the cordage together.

3. A machine for twisting the ends of a length of cordage together in the formation of an endless belt, comprising spaced supporting members having bearing openings, a rotary twisting sleeve mounted within said bearing openings, said sleeve having a longitudinally disposed cordage opening, a main pulleymounted on the sleeve intermediate the ends of the sleeve, idle pulleys mounted at opposite sides of the main pulley, a power pulley, and belts operating over the main pulley and idle pulleys, the belts operating over the lower side of the main pulley rotating said main pulley and sleeve.

MADISON H. BRISCOE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number .Name Date 731,883 Fredenburgh June 23, 1903 743,707 Fredenburgh 'Nov. 10, 1903 2,049,945 Casablancas Aug. 4.;l936 

